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srrc_improved
- 改进根升余弦成型滤波，信噪比可达-70dB，性能较标准升余弦提高较大，在TVB2脉冲成型中仿真验证过-Improved root raised cosine shaping filter, SNR up to-70dB, performance than the standard raised cosine larger increase in pulse shaping TVB2 verified in simulation
project
- 对双极性随机序列二进制数字基带信号，采用开方升余弦滚降波形、矩形脉冲、半波正弦在白噪声条件下的最优（匹配滤波器）接收程序。考察码间串扰和白噪声共同作用引发的误码，画出误码率曲线；设计均衡器画出误码率曲线。-Bipolar random sequence of binary digital baseband signal, using the square root raised cosine wave, rectangular pulse, half sine wave white noise
QAM_ex
- QAM scr ipt for modulation and demodulation, raised cosine filter, convolutional coding, viterbi coding, eye diagram, BER
cognitivel
- frequency expander. Matlab code for expander.When x is a vector, this function adds L-1 after each element of x. When x is a matrix, each column of it treated as vector and expanded L fold. SQUARE-ROOT RAISED-COSINE PULSE: h=sr_cos_p(N,L
file
- 升余弦滤波器设计，产生眼图，输入调制方式为2PAM和4PAM，符号率为1Hz，等效信道滤波器为升余弦滚降成形滤波器(缺省滚降系数为0.5)-Raised cosine filter design, resulting in eye diagrams, input modulation for 2PAM and 4PAM, symbol rate of 1Hz, the equivalent channel filter for shaping raised cosine filter (defa
bqpsk
- BPSK 与QPSK 调制解调系统的Matlab 仿真程序,发送滤波器与接收滤波器均为根升余弦滚降滤波器；信道噪声为加性高斯白噪声 绘制BPSK 与QPSK 调制下的误码率与信噪比曲线图，并与理论曲线进行对比-BPSK and QPSK modulation and demodulation system Matlab simulation program, send and receive filters are root raised cosine filter roll-off fil
PSK
- 根据M值的改变可以产生2、4、8、16PSK数字调制基带信号，且成形滤波器可任选升余弦、根升余弦、高斯。-M may be generated according to a change value 2,4,8,16PSK baseband digital modulation signal, and optionally raised cosine shaping filter, the root raised cosine, Gaussian.
pulse_shaping_filter
- 无线通信系统发射端仿真中，脉冲成型滤波器。是一种根升余弦滤波器。-A pulse shaping filter in the wireless communication system. It is a root raised cosine filter.
FHSS
- 结合仿真跳频通信系统讲解根升余弦信号整形和加入高斯白噪声信道。-Combining simulation frequency hopping communication system to explain the root raised cosine signal shaping and adding white Gaussian noise channel.
f2t
- 这是一个实现升余弦滚降函数的一段MATLAB代码，在变换不同的滚降系数可以很清楚的观察函数。-This is a realization raised cosine function for some MATLAB code, in the transformation of different roll-off factor can be clearly observed functions.
cos
- 通信系统中用matlab实现升余弦滚降波形的眼图及功率谱-Communication system using matlab realize Raised Cosine waveform and power spectrum eye
waveeq1dfd
- finite difference scheme for the 1D wave equation - matlab scr ipt waveeq1dfd.m finite difference scheme for the 1D wave equation fixed boundary conditions raised cosine initial conditions
BPSK-QPSK
- 分别编写BPSK与QPSK调制解调系统的Matlab仿真程序，要求：发送滤波器与接收滤波器均为根升余弦滚降滤波器；信道噪声为加性高斯白噪声 绘制BPSK与QPSK调制下的误码率与信噪比曲线图，并与理论曲线比较对比-They were written BPSK and QPSK modulation and demodulation system Matlab simulation program requirements: a transmission filter and a recept
rcosine
- 简单介绍根升余弦滤波器的概念和设计，附有毕业设计。还有一些代码。-Brief root raised cosine filter concept and design, with graduation. There are some code.
chengxv
- 一个二进制PAM通信系统使用滚降系数为0.4的升余弦波形，系统传输速度4800bps。matlab仿真这个系统的早-迟门的工作。-A binary PAM communication system using a roll-off factor of 0.4 raised cosine waveform, the system transmission speed 4800bps. matlab simulation of this system early- working late door
BPSK
- BPSK调制解调，对信号采用BPSK调制，载波采用升余弦滚降-BPSK modulation and demodulation of signals using BPSK modulation, the carrier uses raised cosine
QPSK_daitong
- QPSK信号，数字带通传输，格雷码编码，根升余弦滤波器，加性高斯白噪声-QPSK signal, a digital bandpass transmission, gray code, root raised cosine filter, additive white gaussian noise
ISI
- Code to simulate the effect of Inter Symbol Interference. The first figure plots the pulse amplitude modulation (PAM) of input sequence. Then a raised cosine pulse is used as pulse shaping signal for transmission. The next figure shows the effect of
eye_matlab
- 眼图用于测试数字传输信道质量。由于传输过程中的频带限制，噪声的叠加使得1和0的差别变小。在接收机的判决点，将“1”和“0”的差别用眼图上“眼睛”张开的大小来表示，十分形象、直观和实用。 首先产生一个二进制随机方波序列，通过升余弦滤波器滤波后，方波的高频成分滤掉后绘出的眼图。在程序中形成在Workspace中的数据变量D。通过指令sim（‘eye’）将工作空间的数据D馈送到眼图仪EyeDiagram，得到眼图仪显示的眼图（右图）。-Eye for testing the quality of
rcosfir_sqrt
- 通过代码计算根升余弦滤波器系数，并通过与matlab本身自带生成函数做了比较-By code calculates root raised cosine filter coefficients, and through matlab comes with its own generating functions were compared